Properties

Supplementary Angles
Complementary Angles
If-Then Transitive Property- Given "If A then B, and if B then C." You can conclude: "If A then C."
Addition Property- If a=b, then a+c=b+c.
Subtraction Property- If a=b, then a-c = b-c.
Multiplication Property- If a=b, then ac = bc.
Division Property- If a=b and c doesn't equal 0, then a/c= b/c.
Substitution Property- If a=b, then you may replace a with b in any true equation containing a and the resulting equation will still be true.
Overlapping Segment Theorem- Given a segment with the points A, B, C, and D (in order) the following statements are true: 1. If AB=CD, then AC=BD 2. If AC=BD, then AB=CD.
Reflexive Property of Equality- For any real number a, a=a.
Symmetric Property of Equality- For all real numbers a and b, if a=b, then b=a.
Transitive Property of Equality- For all real numbers a, b, and c, if a=b and b=c, then a=c.